Attachment for snap-on snow chains



Dec. 26, 1950 P. RAWL ET AL 2,535,601

ATTACHMENT FOR SNAP-ON SNOW CHAINS Filed Aug. 50, 1948 2 Sheets-Sheet 1 Philip Raw! Sumner Rosoff INVENTORS BY 9mm Dec. 26, 1950 wL ET A 2,535,601

ATTACHMENT FOR SNAP-0N SNOW CHAINS Filed Aug. 50, 1948 2 Sheets-Sheet 2 vi as 30 2/ l6 32 I w 25 /0 I8 24 Phil/p Raw/ Sumner Rosa ff INVENTOR 5 BY @waaifim WWW EMU Patented Dec. 26, 1950 lhilipv Rawl-, Brookline,: and SumnerzRbsofi";

Dorchester, Mass;

Application'Augiust30, 1948; Serial No; 46,846

drOlaimsL (Cl. 152-2T4'2- This invention relates generally totire-"chains and more particularly to a system of attachment;

forindividual tire chains of the-typewhich are circumferentially spaced aroundthe'tire on anautomotive vehicle.

In brief, this: invention includes a plurality of bars extending through aperturesin the tire'rim, together with-rim engaging arms-carried by one end portion of each bar-and a spiderLalso having rim engaging arms removably securable to theotherend" portion o-teach bar; the bars and spiders having-'rim-spanning arms with eyes on their outer ends' for securement to the tire chains.- The rim-engaging armslocate the bars with ref erence to the rim, with or without theassistance of a rigid hoop which may be added to the other elements of this invention.

A-primary object of this inventionis to facilitatethe'mounting of individual tire chain's om thewheel ofan automotivevehicle; and there moval of these chains when nolonger requiredf Another object of this invention isto pro-videtire attachment' means which maybe used for securing individual transversely disposed tire chains quickly and easily and in such a manner that the chains and. attachment means therefor will not rattle during the operation of the ve- 111018.;

Still another object of this invention is! to provide means of the character mentioned above which, in particular reference to one embodiment ofthis invention, can be applied to rims" of several different sizes and configurations;

And a' last object-to bementioned specifically is to provide means of this character which is relatively inexpensive and practicable to manufacture, which is adapted to preserve the tire chains in proper orientation upon the tire, and which will give generally efficient and durable service.

With these objects definitely in view, this invention resides in certain novel features of construction, combination and arrangement of elements and portions as will be hereinafter described in the specification, particularly pointed out in the appended claims, and illustrated in the accompanying drawings which form a material part of this application, and in which:

Figure 1 is a fragmentary elevational view of the rear end of an automobile with this invention operatively applied to the rear wheel and tire;

Figure 2 is an elevational view of the inside of the same wheel with this invention applied thereon;

Figure 3' is a-vertical transversesectional View;

taken substantially upon the' 'line 3-3 -in=F'igure l';

Figure 4 is a three dimensional view of the partswhich are hereinafter referred to as the" hoop; barsand" rim =spanning arms;

Figure-*5 is a three dimensional view 'of the attachment plate for the direct attachmentof the tire chains, when three such chains are =mounted=together, as illustrated'in each of the corresponding units in Figures 1' and 2;

Figure 6- is' a three dimensional viewof a spider; and

Figure 7 isa" three dimensional view of a" slightly modified form of this invention inwhich the hoop is deleted."

Similar characters of reference designate simi lar or identical elements andportions through-- outthe'specification and throughout thediffrent views in the drawings;

Referring now to the drawings 'in' detail; the

environment wherewith this invention is adapted to be used will ordinarilyincludea rim l0 invention.

l p-plurality of thesebars l 8 extend transversely of "therim lil and, in thepreferred embodiment of this invention, will be integrally secured to a" hoop 2i the'barsand hoop being both of "substam tially rigid material. Each of the-bars l8is':-con"- tinued outwardly and radially to comprise rimspanning arms 2| which terminate in eyes 22. A sleeve 24 is provided for each of the bars l8, and when these bars have been inserted through the apertures I6, the sleeves 24 extend to the opposite side of the rim It. The ends 26 of the bars [8 are threaded to receive wing nuts 28 and spiders, generally indicated by the numeral 3|] and represented best in Figure 6, include socket portions 32 which fit over the threaded portions 26 of the bars l8 and abut the ends of the sleeves 24, a complement of washers 34 being provided. as desired.

Each of the spiders 30 includes rim-engaging arms 36 which are integral with the socket portions 32 and which may be provided with resilient buttons 38 on their outer ends to prevent damage to the finish of the rims I0. Each spider also includes a rim-spanning arm 40 terminating in an eye 42.

The actual tire chains used in this invention may vary considerably in form, that embodiment illustrated including three chains 44 arranged in parallel relation and permanently secured, as at 46, to attachment plates 48. These attachment plates will be provided with a snap hook 50, or analogous structure, whereby the chainsmay be secured to the eyes 22 and 42.

In the embodiment of this invention, illustrated inFigure 7, the hoop 20 is deleted, and a pair of rim-engaging arms 52 will be provided for each transversely extending bar 54 which corresponds exactly with the bar [8 already described. A rim-spanning arm '6, a sleeve 58, and a spider 63] will be formed according to the corresponding units already described.

The operation of this invention will be clearly understood from the foregoing description of the mechanical details thereof, taken in connection with the drawings and with the description of the objects sought to be achieved by this invention, Further description would, therefore, appear unnecessary.

Minor variations may be resorted to Without departure from the scope of this invention, which scope should be determined only as directed by a proper interpretation of the subjoined claims.

Having described the invention, What is claimed as new is:

1. The combination of tire chains, a plate secured to each end of said chains, a Wheel with transverse apertures therein, sleeves extending through said apertures, bars of greater length than and extending through said sleeves, spiders on the ends of the bars on one side of said rim, rim-engaging members on each bar on the ends of the bars on the other side of said rim, oppositely disposed rim-spanning arms having eye terminals and carried by one end portion of each bar and by said spiders, said hooks securing said plates to said eye terminals.

2. The combination of tire chains, a plate secured to each end of said chains, a tire wheel With transverse apertures therein, sleeves extending through said apertures, bars of greater length than and extending through said sleeves, spiderson the ends of the bars on one side of said rim, rim-engaging members on each bar on the ends ,of the bars on the other side of said ri rnfoppositely disposed rim-spanning arms having eye terminals and carried by one end portion of each bar and by said spiders, said hooks securing said plates to said eye terminals, one of said rim-engaging members comprising a hoop secured to the ends of the bars on said one side 4 of the tire rim to function as auxiliary means in locating said bars.

3. The combination of tire chains, 2. plate secured to each end of said chains, a wheel with transverse apertures therein, sleeves extending through said apertures, bars of greater length than and extending through said sleeves, spiders on the ends of the bars on one side of said rim, rim-engaging members on each bar on the ends of the bars on the other side of said rim, oppositely disposed rim-spanning arms having eye terminals and carried by one end portion of each bar and by said spiders, said hooks securing said plates to said eye terminals, one of said rimengaging members comprising a hoop secured to the ends of the bars on said one side of the tire rim to function as auxiliary means in locating said bars, said spiders having sockets fitting over said endportions of said bars and abutting one end of each of said sleeves, said end portions being threaded, and nuts to hold said sockets in place.

4. The combination of tire chains, a plate secured to each end of said chains, a wheel with transverse apertures therein, sleeves extending through said apertures, bars of greater length than and extending through said sleeves, spiders on the ends of the bars on one side of said rim, rim-engaging members on each bar on the ends rim-engaging members comprising a hoop secured to the ends of the bars on said one side of the tire rim to function as auxiliary means in locating said bars, said spiders having socket-s fitting over said end portions of said bars andabutting one end of each of said sleeves, said end portions being threaded, and nuts to hold said sockets in place, said rim-spanning arms on one side of the rim being carried on said spiders.

PHILIP RAWL.

SUMNER ROSOFF.

' REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Num er Name Date 1,450,779 LaRiviere Apr. 3, 1923 2,420,804 Wenzel May 20, 1947 

